This critical security update resolves a privately reported vulnerability in
Microsoft Office. The vulnerability could allow remote code execution if a user
opens a specially crafted Microsoft Office file with a malformed object inserted
into the document. An attacker who successfully exploited this vulnerability
could take complete control of an affected system. An attacker could then
install programs; view, change, or delete data; or create new accounts with
full user rights. Users whose accounts are configured to have fewer user rights
on the system could be less impacted than users who operate with
administrative user rights.